She was rushed to Ysbyty Gwynedd hospital in Bangor and transferred to the specialist trauma unit at Stoke but she died two weeks later.

An inquest at Caernarfon yesterday heard she died of pneumonia brought on by injuries suffered in the accident.

Neighbour Susan Mary Thomas said she had seen Miss Ellis get into the car to go shopping in Caernarfon at about 1.40pm on November 14 last year. She described Miss Ellis as a careful, considerate driver.

Alwyn Jones said he heard the noise of a car revving loudly and thought it was “kids playing about” but then recognised it was Miss Ellis.

She was heading towards him at speed and he got out of the way. The Peugeot stuck a garden wall and the side of the house.

Mr Jones went to assist Miss Ellis. He said she was conscious and saying “what have I done?”

Vehicle examiner Arwyn Roche found no defects that could have cause the accident and PC Richard Davies discounted environmental factors.

He concluded driver error in applying the accelerator pedal instead of the brake had caused the collision.

North Wales deputy coroner Nicola Jones said Miss Ellis died as a result of an accident.

“It was most likely a momentary error which could have happened to anyone,” she said.

The coroner added nothing she had heard in evidence suggested Miss Ellis’ age had anything to do with the incident.